ThisPicture shows the field lines and how a compass in this field line will be affected.
MAGNETIC DOMAINS
Magnetic domains are clusters of atoms that are all aligned or oriented in the same fashion.
This creates magnets which will have a large cluster of aligned atoms creating magnetic domains that will make poles on both sides of the clusters. To make these magnets align you can ether place metals in strong magnetic fields or you can stroke a piece of metal in one direction with a magnet to align the atoms.
Magnets and Electric Fields strongly interact with each other. Magnetic Fields will align themselves with the flow of electricity through a wire. This is a picture of an electromagnet which uses the power of electric current to create magnetic force.
This picture shows an electromagnet where when the coil wrapped around the metal has electricity passed through it the atoms align creating magnetic domains in the metal.
EARTHS MAGNETIC FIELD
The Earth is so massive that it has its own magnetic field It is believed this is created by moving currents of charged lava in the Earths molten core.
There are many theories but this is the most commonly held. The earths poles are not stable they switch from time to time and there was a period of time in early human existence when they were turned off altogether.
http://www.answers.com/topic/magnetic-field
This picture shows earths magnetic field lines and the pull that it has in relation to the location of the north and south poles.
ALAN AND CASE
CHAPTER 36 MAGNETISM
MAGNETIC POLES
All magnets have poles, there will be a north and south pole to every magnet.
This is caused by the alignment of subatomic particles within the atom.
If you break a bar magnet in half the new halves will have both a north and south pole just like the original magnet.
This picture shows how like poles repel and opposite poles attract.
MAGNETIC FIELDS
Magnetic fields are invisible areas in which the push or pull of a magnet can be felt.
All magnets can only be felt for a certain distance away from the magnet this area is known as the magnetic field.
ThisPicture shows the field lines and how a compass in this field line will be affected.
MAGNETIC DOMAINS
Magnetic domains are clusters of atoms that are all aligned or oriented in the same fashion.
This creates magnets which will have a large cluster of aligned atoms creating magnetic domains that will make poles on both sides of the clusters. To make these magnets align you can ether place metals in strong magnetic fields or you can stroke a piece of metal in one direction with a magnet to align the atoms.
Magnets and Electric Fields strongly interact with each other. Magnetic Fields will align themselves with the flow of electricity through a wire. This is a picture of an electromagnet which uses the power of electric current to create magnetic force.
This picture shows an electromagnet where when the coil wrapped around the metal has electricity passed through it the atoms align creating magnetic domains in the metal.
EARTHS MAGNETIC FIELD
The Earth is so massive that it has its own magnetic field It is believed this is created by moving currents of charged lava in the Earths molten core.
There are many theories but this is the most commonly held. The earths poles are not stable they switch from time to time and there was a period of time in early human existence when they were turned off altogether.
This picture shows earths magnetic field lines and the pull that it has in relation to the location of the north and south poles.
WORKS CITED
"Magnetism." FCCSC :: Franklin County Community School Corporation. 01 June 2009 <http://www.fccsc.k12.in.us/les/tech/projects/grade8/braingame/velicia/Cat3Q2.htm>."Detection of a Magnetic Field - Succeed in Physical Science: School for Champions." School for Champions: online lessons for those seeking success. 01 June 2009 http://www.school-for-champions.com/science/magnetic_detection.htm.
"CARISMA Web - Fluxgate Magnetometers 101." 02 June 2009 http://129.128.241.207/carismaweb/content/view/72/1/.
"Magnetic field: Definition from Answers.com." Answers.com - Online Dictionary, Encyclopedia and much more. 02 June 2009 <http://www.answers.com/topic/magnetic-field>.